System and method of securing allocation of network functions for session slices

A non-transitory, machine-readable medium, comprising executable instructions that, when executed by a processing system including a processor, facilitate performance of operations, the operations comprising:

• receiving a query for network functions to handle a connection request, wherein the query includes a slice ID;
• determining a network function authorized to provide service for the slice ID based on a blockchain ID for the network function immutably recorded on a blockchain;
• and
• sending, responsive to the query, an identifier for the network function.

A method, comprising:

• receiving, by a processing system including a processor, a query for network functions to handle a connection request, wherein the query includes a slice ID;
• determining, by the processing system, a network function authorized to provide service for the slice ID based on a blockchain ID of the network function, wherein the blockchain ID is immutably recorded on a blockchain;
• and
• sending, by the processor responsive to the query, an identifier for the network function.